From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Hajnoczi Subject: Re: [Qemu-devel] Testing NPIV Feature with Qemu-KVM Date: Thu, 5 Sep 2013 16:15:58 +0200 Message-ID: References: <20130902123444.GA25765@oc2505588478.ibm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: In-Reply-To: <20130902123444.GA25765@oc2505588478.ibm.com> Sender: linux-fsdevel-owner@vger.kernel.org To: chandrashekar shastri Cc: linux-scsi , qemu-devel , linux-fsdevel@vger.kernel.org, Hannes Reinecke List-Id: linux-scsi@vger.kernel.org On Mon, Sep 2, 2013 at 2:34 PM, chandrashekar shastri wrote: > I am testing NPIV feature on upstream Qemu, I have configured the zone > and able to see the created vport on the storage array. > > Since, I am learning on how to setup the NPIV, I haven't created the different zone for > the vport and the array, I just added in the existing zone. > > Now, how do pass the LUN to the qemu, from Dr. Hannes Reineckei mail thread I got to know that lspci command on the host doesn't show the virtual HBA. > > I didn't understand why there is limitation on that and if I specify > /usr/libexec/qemu-kvm -enable-kvm Fedora19 -m 3000 -smp 2 -net nic -net > \ user -vnc 127.0.0.1:0 -drive if=scsi,file=/dev/sdj > > How do I make sure that qemu is using the virtual HBA or (vport)? >>From my limited knowledge of NPIV, after you create the vport on the host you'll have a new "SCSI host" which scans LUNs. That means new SCSI devices appear on the host. You can use "ls -al /sys/class/scsi_host" to see the SCSI hosts that are active. You can use "virsh nodedev-list --tree" to see the details of the devices. This should help you find the NPIV LUNs which can be passed to QEMU. Stefan